Improvement in locking devices for window-cords



" `Figure 5,1,She`e l'thensnal manners l `Thelockingfde ceiis lyrLettersPatentNo,112,278,

" y cnn-BLE sfn.- RAND, oFjDUBnQUn, lows.

Aanni February 2s, 1871.

`;""|M`P",RovM;NT mLocKlNc DEVICES FOR wlNnowv-conns.

\ "The Schedule referred these Lettersy Patent and making parl: of thesame.

i To alliwlwm 'it may concern L I l l f Beit knownthatLr-Onnnnns R.RAND, of Du-y buque, in the county" of Dubuque and` the State of Iowa,`have invented anflmprovement for Locking Device for Window-Cords and Ido hereby declare the followingto'be e; full, clear, andexact,description` of the same, reference beingfhad to the accompanyingdrawing forming partof this specificatiomin which- 'Figure l,"` Sheet'`I, lis an elevationj of`a window,

" partly in section, toshow'ftllc application of my im.

provedlockingdevice i i l Fignreff?, SheetI, isa veltical'section ofthesame."

` 's l `liigure-S, `Sheet 1I, is allongitndinal' section of the'`locking device, andslioiving ,the cord released. l

l Eignre4, Slieet I'I,;is a` longitudinal `section of the llockingdevice, `vvitl.( ,tl1e` operatingcordsl locked in` r11, y Similarletters indicatelikeparts. I

placeyand t, t t Y i is` anend elevation of the same.

; jM-y invention ,liaszfor lits object to provide an improved device forlocking` the operating cords of win'-` j i dow-"sashesand blinds .inposition, to hold the sashes r 0r blndseither `rinsed orflowered; and tothis end A i `The invention consists f in the construction of the flocking deviceyto behereinafter morejfnlly described;

d', l the. operating cords, ipassing y over pulleys in sill through the`flanges fr. .r

The, ease is divided into two longitudinal compartments by the partitionS, each provided -with a grcoved roller, T T',a clamping-lever, U, alockingpawl, U, andan India-rubber spring, V.

The looking-pawls are vpivoted to thelower edge -of the case,with-"their forward serrated ends immediately beneaththe rollers T, and`theirrear ends resting upon the springs V.

lhepawls U' bear upon the rear ends ofthe levers,

and when thrown into position shown in iig. 4, cause the serrated end ofthe levers to clamp the operating cords against the roller T, as shown,and when occupying theposition shown in iig. 3, release the 'operatingcords, and allow this to move freely upon the rollers 'Il T". v

The Vtension ofthe springs V holds the `serrated ends of the`levers-from contact with the cords and rollersY when the .pawls occupythe position shown in fig. 3. `Having thus described my invention, v lWhat I claim as new therein, and desire to secure by Letters Patent, isf j The locking device, consisting of the case B, pivoted lever U,rollers T T', pawls UV', and springs V, all arrangedand operatingsubstantially as described, for Y the purpose specied.

y ,y .CHARLES RRAND. Witnesses: 1

composed of a vrectangular o A JOSEPEHAGMANN, V. REHRLE.

case, R, with a'cl'osed top, 'anLLbolted to the windoiv-

